Of Mark; dedicated to Mars
Lamarco is a modern American creation, likely formed by combining the French-derived definite article 'La' with the classic Italian and Spanish name Marco. Marco itself is derived from the Roman name Marcus, which relates to Mars, the Roman god of war.
Less common today
Lamarco isn't in the latest US Top 1000. It last peaked at #6,244 in 1999.
US births per 5-year period, 1990βpresent (SSA data).